Quarterly report pursuant to Section 13 or 15(d)

Deferred Costs - Additional Information (Details)

v3.20.2
Deferred Costs - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Dec. 31, 2019
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]          
Amortization of intangible assets $ 1,430 $ 2,140 $ 4,870 $ 7,180  
Finite-lived intangible assets, accumulated amortization $ 59,450   $ 59,450   $ 57,150